Iron-plate jail



No. 26,500.L A A PATBNTBD DEG. 2o, 1859.

. EJAGOBS.

IRON PLATE JAIL.

b n o u n a a ou naaouoonnnnv j ENOCH `JACOBS, OF CINCINNATI, OHIOaIRON-PLATE JAIL.

Specification of Letters Patent No. 26,500, dated Decemberj1j859. i i

To all whom it may concern:

Be it known that I, ENooH; JACOBS, of the city of Cincinnati,` in thecounty of Hamilton and State of Ohio, have invented a new and usefulImprovement in Jails or Prisons; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, made to form a part of this specication. j

My invention relates 1st to the construction of jails or prisons, ofchilled-rolled wrought-iron plates, secured together in edges of theplates at corners.

such manner that the walls, partitions, and Hoors of said structure maybe substantial, strong and durable, and most eii'ectually prevent theescape of persons confined therein, and at the same time `afford `allnecessary facilities for plumbing, light, ventilation, ingress andegress. 2d to a special provision for securing the edges of said plates.3d to a device for more perfectly securing the doors, as hereinafterspecified and represented. i j

Of the accompanying drawings, Figure 1 represents a ground plan of thejail or prison surrounded by a wall of masonry. Fig. 2 shows inperspective an external view of the jail the doors of which are providedWith the securing keeper. Fig. 3 `is a perspective view showing of thebase floor, and the arrangement of the barred ventilator. Fig. 4.'is asectional view taken through the red lines (m i?, showing the manner of`overlaying an securing the Fig. 5, is a sectional view taken throughthe red line (y y) showing the manner of securing the abutted edges ofthe plates. Fig. 6, is a sectional view of the upper floor or top of thejail. Fig. 7, is a sectional bottom view of the base floor.

(A) are chill-rolled wrought plates of which the jail or prison isconstructed. Their edges are abutted as fully shown in Fig. 5, thuspresenting a `smooth surface upon the inside, and preventing theinsertion of wedges or other devices by means of` Which the plates (A)might be separated,

`to allow the sawing or cutting of the rivets.`

(e) `are strips ofthe isame `materialiand;f thickness as i the plates(A), `overlayingthe joints or seams formedbyfthe abutted: edges 1 55 ofthe plates; These stripse) @are iirinly riveted to said plates, oneaclisideofthe:

4: and 5, so that thesaidfplates cannot `be` separated or removed save`by cutting en-` tirely throughthem.` i V points of which aredeeplyfcountersunklin 1,. the plates (A) as fullyshown inFigsgyg" f l(e) 1s an overlaying corner strip,ma`de to fit the corners as showninFig.4, and f T riveted to the plates (A) ingthe manner be-` foredescribed.` `1 1v; `1

(f) is the base floor, constructed :ofthe plates (A) and inw .edition`tothe strips e) has similar strips` (ef) f crossing strips.; c) andriveted tothe plates (A) inzli e:

manner, `as fully ishownuin Fig.` `7, these cross strips (e) serve togive strength` and 1f solidity to the loor, .Thsfoorfis formed withbarred apertures or 1 venti? lators, fully shown in Figs.` 3gand 7,Hbyf

the apartments of the jail.`

provided with corresponding (ventilators as shown in Figs. 2 land... Q

(It) is a securingleeper `formed,witha` Q1 longarm (t) and twoshortlarmsULMhj) `and arranged in such mannerthat when 'the i i i. j

1 extend across the lock` covering thekeyyRx` door (j) is closed,`thelonggarm (lz/)will 1'15` i means of whichairmayfbe admitted toalh hole,to the other sideaofthedoor, where it?.

may be secured by meansof apad lock, and@` the short arms (L` L)eXtend`over and);l i

bear upon the barsf(k,`c)` `(ofthe door@ thus `a Ording to it additionalsecurity@ These jails may be constructed` with` one 1 or more stories,`and providedewith `suitable staircases, galleries, railings` "etc.` they thickness of the ironmayjbe variedaccord-x. j i

ing to the strength of :struct-ure requiredfj They may be inclosed`withlwalls" lofglnia.-

sonry, or maybe providedfwith"suitablelffv` *l roofing and be`useduwithout suchfinclosurea` and prison houses is-" l:

What Iclaim in thereonstructionof jails; l

The improved iron iwalls forthe f l consisting of the following partsarranged A, all in the manner and for the purposes and united as setforth, to Wit, the entire herein set forth.

Wall plates A, having their edges closely abutting, the joint plates e,united to and uniting the plates A, by rivets z', Which have theirriveted ends inward and countersunk to the depth of the thickness of theplates ENOCH JACOBS.

